Phpseclib vulnerabilities
We track 4 vulnerabilities in Phpseclib products across 4 products. 4 are rated high or critical, and none are known to be exploited. The most recent was published on May 12, 2026.
Latest Phpseclib vulnerabilities
- 7.5 High severity
phpseclib: Uncontrolled Resource Consumption
phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29
- 7.5 High severity
phpseclib: Interpretation Conflict
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confus
- 7.5 High severity
phpseclib: Uncontrolled Resource Consumption
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When processing the ASN.1 object identifier of a certificate, a sub identifier may be provided that leads to a denial of service (CPU consumption for decodeOID).
- 7.5 High severity
1x: Uncontrolled Resource Consumption
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check